I have different tiles, each in its own canvas. When I toggle the camera (simultaneous), the tile that our out of the viewport seem to go wrong. This only happens in Firefox.
One odd thing that I am doing in my code - and this is part due to the bug - is I am having my my rendering stopped all the time, but whenever a ui action is done (ao the camera toggling) I do a runRenderLoop() (I do this for processor saving, since my frames don't update all the time);